component
BQ25896RTWT
Public Made by Adomby adom
Texas Instruments Battery Management ICs, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"schema_version": 1,
"type": "component",
"slug": "bq25896rtwt",
"title": "BQ25896RTWT",
"brief": "Texas Instruments Battery Management ICs, WQFN-24-EP(4x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
"tags": [
"component",
"power supply chip",
"bq25896rtwt",
"factory-2.0.0",
"extractor-text"
],
"component": {
"mpn": "BQ25896RTWT",
"manufacturer": "Texas Instruments",
"package": "WQFN-24-EP(4x4)",
"pin_count": 25,
"category": "Power Supply Chip",
"subcategory": "Battery Management ICs",
"datasheet": "https://www.ti.com/cn/lit/gpn/bq25896",
"parts": {
"symbol": "bq25896rtwt.kicad_sym",
"footprint": "bq25896rtwt.kicad_mod",
"model_3d": "bq25896rtwt-hero.glb",
"model_3d_plain": "bq25896rtwt-etched.glb",
"model_3d_step": "bq25896rtwt-etched.step",
"model_3d_step_plain": "bq25896rtwt.step",
"lbr": "bq25896rtwt.lbr"
},
"distributor_links": {
"lcsc": "C2876371",
"digikey": "296-42631-2-ND",
"mouser": "595-BQ25896RTWT"
},
"distributor_check": {
"checked_at": "2026-11-07T02:09:16Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-42631-2-ND",
"status": "found"
},
"mouser": {
"pn": "595-BQ25896RTWT",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "VBUS",
"type": "power_in",
"description": "Charger input voltage connected through the internal RBFET to PMID; place a 1-µF ceramic capacitor from VBUS to PGND as close as possible to the IC."
},
{
"number": "2",
"name": "PSEL",
"type": "input",
"description": "Power source selection input; High indicates a USB host source and Low indicates an adapter source."
},
{
"number": "3",
"name": "PG",
"type": "output",
"description": "Open-drain active-low power good indicator, connect to pull-up rail via 10-kΩ resistor; LOW indicates a good input source."
},
{
"number": "4",
"name": "STAT",
"type": "output",
"description": "Open-drain charge status output with 10-kΩ pull-up; LOW indicates charge in progress, HIGH indicates charge complete or disabled, blinks at 1 Hz on fault."
},
{
"number": "5",
"name": "SCL",
"type": "input",
"description": "I2C interface clock; connect to the logic rail through a 10-kΩ resistor."
},
{
"number": "6",
"name": "SDA",
"type": "bidirectional",
"description": "I2C interface data; connect to the logic rail through a 10-kΩ resistor."
},
{
"number": "7",
"name": "INT",
"type": "output",
"description": "Open-drain interrupt output with 10-kΩ pull-up that sends an active-low 256-µs pulse to the host to report charger status and faults."
},
{
"number": "8",
"name": "OTG",
"type": "input",
"description": "Boost mode enable pin; boost mode is activated when OTG_CONFIG = 1, OTG pin is high, and no input source is detected at VBUS."
},
{
"number": "9",
"name": "CE",
"type": "input",
"description": "Active-low charge enable pin; charging is enabled when CHG_CONFIG = 1 and CE = Low, and the pin must be pulled High or Low."
},
{
"number": "10",
"name": "ILIM",
"type": "input",
"description": "Input current limit pin regulated at 0.8 V; a resistor to ground sets IINMAX = KILIM/RILIM, usable for input current monitoring, and limits below 500 mA are not supported."
},
{
"number": "11",
"name": "TS",
"type": "input",
"description": "Temperature qualification voltage input for an NTC thermistor (103AT-2 recommended) with a divider from REGN; charge suspends when TS is out of range."
},
{
"number": "12",
"name": "QON",
"type": "input",
"description": "BATFET enable/reset control input with internal pull-up; low for tSHIPMODE (typ 1 s) exits ship mode, low for tQON_RST (typ 18 s) resets the system power."
},
{
"number": "13",
"name": "BAT",
"type": "power_in",
"description": "Battery connection point to the positive battery terminal, with the internal BATFET between BAT and SYS; connect 10 µF close to the pin."
},
{
"number": "14",
"name": "BAT",
"type": "power_in",
"description": "Battery connection point to the positive battery terminal, with the internal BATFET between BAT and SYS; connect 10 µF close to the pin."
},
{
"number": "15",
"name": "SYS",
"type": "power_out",
"description": "System connection point kept above the minimum system voltage by the converter; connect 20 µF close to the pin."
},
{
"number": "16",
"name": "SYS",
"type": "power_out",
"description": "System connection point kept above the minimum system voltage by the converter; connect 20 µF close to the pin."
},
{
"number": "17",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the high-current converter node, connected internally to the LSFET source; single-point connection to analog GND recommended."
},
{
"number": "18",
"name": "PGND",
"type": "power_in",
"description": "Power ground for the high-current converter node, connected internally to the LSFET source; single-point connection to analog GND recommended."
},
{
"number": "19",
"name": "SW",
"type": "power_out",
"description": "Switching node connecting to the output inductor, with a 0.047-µF bootstrap capacitor from SW to BTST."
},
{
"number": "20",
"name": "SW",
"type": "power_out",
"description": "Switching node connecting to the output inductor, with a 0.047-µF bootstrap capacitor from SW to BTST."
},
{
"number": "21",
"name": "BTST",
"type": "power_in",
"description": "PWM high-side driver positive supply connected to the bootstrap diode anode; connect a 0.047-µF capacitor from SW to BTST."
},
{
"number": "22",
"name": "REGN",
"type": "power_out",
"description": "PWM low-side driver positive supply output and TS bias rail; connect a 4.7-µF (10 V rating) ceramic capacitor to analog GND."
},
{
"number": "23",
"name": "PMID",
"type": "passive",
"description": "Connected to the drain of the reverse blocking MOSFET and the HSFET drain; put 1 µF on VBUS to PGND and the remaining input capacitance on PMID to PGND."
},
{
"number": "24",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "25",
"name": "PowerPAD",
"type": "power_in",
"description": "Exposed pad for heat dissipation; always solder to the board with vias star-connecting to PGND and the ground plane."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The exposed pad has no pin number in the datasheet; I numbered it 25 and typed it as ground (power_i; The datasheet pin table lists PMID as type DO, and I mapped that to passive because it is a power-st; The datasheet gives two different QON reset times: 18 s typical in the pin table and 15 s in section"
],
"pages_sent": 23,
"cost_usd": 0.1553,
"at": "2026-11-07T02:09:08"
},
"datasheet": {
"url": "https://www.ti.com/cn/lit/gpn/bq25896",
"pages": 65,
"sha256": "0daf169500794ae6",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 25,
"described": 25,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "bq25896rtwt.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
4,
4,
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "096fc110543e6d324c5120c2d38e3dca87a389da9b6fac234f1fe40856295ef4",
"checked": "2026-11-07",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "bq25896rtwt-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
"sha256": "13b1c7ed7510e68aeb95e04c48af886cd880c126dda85814ed71d385cdbc32f0",
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}
]
},
"metadata": {
"specs": {
"Manufacturer": "Texas Instruments",
"Package": "WQFN-24-EP(4x4)",
"Category": "Power Supply Chip",
"Pins": "25"
},
"appearance": {
"contacts": {
"quote": "1. Place input capacitor as close as possible to PMID pin and GND pin connections and use shortest copper",
"page": 55,
"doc": "ds.pdf",
"material": "copper"
},
"version": 1,
"datasheet_sha256": "0daf169500794ae6a170f5cbd592b84e7e1cb9f5ab89b904bea2d944819f22d8"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Voltage VBUS",
"symbol": "VBUS",
"kind": "absolute_maximum",
"unit": "V",
"min": -2,
"typ": null,
"max": 22,
"conditions": "converter not switching",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage PMID",
"symbol": "PMID",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
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"max": 22,
"conditions": "converter not switching",
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{
"name": "Voltage STAT",
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"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage PG",
"symbol": "PG",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage BTST",
"symbol": "BTST",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 20,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage SW",
"symbol": "SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -2,
"typ": null,
"max": 16,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage SW peak",
"symbol": "SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -3,
"typ": null,
"max": 16,
"conditions": "peak for 10 ns duration",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage BAT, SYS",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 6,
"conditions": "converter not switching",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage SDA, SCL, INT, OTG, REGN, TS, CE, QON",
"symbol": "",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage PSEL",
"symbol": "PSEL",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage BTST to SW",
"symbol": "BTST TO SW",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 7,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage PGND to GND",
"symbol": "PGND to GND",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 0.3,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Voltage ILIM",
"symbol": "ILIM",
"kind": "absolute_maximum",
"unit": "V",
"min": -0.3,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output sink current INT, STAT",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "output sink current",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output sink current PG",
"symbol": "",
"kind": "absolute_maximum",
"unit": "mA",
"min": null,
"typ": null,
"max": 6,
"conditions": "output sink current",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Junction temperature",
"symbol": "TJ",
"kind": "absolute_maximum",
"unit": "°C",
"min": -40,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Storage temperature range",
"symbol": "Tstg",
"kind": "absolute_maximum",
"unit": "°C",
"min": -65,
"typ": null,
"max": 150,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input voltage",
"symbol": "VIN",
"kind": "recommended_operating",
"unit": "V",
"min": 3.9,
"typ": null,
"max": 14,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Input current (VBUS)",
"symbol": "IIN",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 3.25,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Output current (SW)",
"symbol": "ISYS",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 5,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Battery voltage",
"symbol": "VBAT",
"kind": "recommended_operating",
"unit": "V",
"min": null,
"typ": null,
"max": 4.608,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Fast charging current",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 3,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Discharging current with internal MOSFET",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 6,
"conditions": "continuous",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Discharging current with internal MOSFET peak",
"symbol": "IBAT",
"kind": "recommended_operating",
"unit": "A",
"min": null,
"typ": null,
"max": 9,
"conditions": "peak, up to 1 sec duration",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Operating free-air temperature range",
"symbol": "TA",
"kind": "recommended_operating",
"unit": "°C",
"min": -40,
"typ": null,
"max": 85,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Battery discharge current (BAT, SW, SYS) in buck mode",
"symbol": "IBAT",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": null,
"max": 5,
"conditions": "VBAT = 4.2 V, V(VBUS) < V(UVLO), leakage between BAT and VBUS",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Battery discharge current in High-Z mode, BATFET disabled",
"symbol": "IBAT",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 12,
"max": 23,
"conditions": "High-Z mode, no VBUS, BATFET disabled (REG09[5]=1), battery monitor disabled, TJ < 85°C",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Battery discharge current in High-Z mode, BATFET enabled",
"symbol": "IBAT",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 32,
"max": 60,
"conditions": "High-Z mode, no VBUS, BATFET enabled (REG09[5]=0), battery monitor disabled, TJ < 85°C",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Input supply current (VBUS) in High-Z mode",
"symbol": "I(VBUS_HIZ)",
"kind": "electrical",
"unit": "µA",
"min": null,
"typ": 15,
"max": 35,
"conditions": "V(VBUS)= 5 V, High-Z mode, no battery, battery monitor disabled",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Input supply current (VBUS) in buck mode",
"symbol": "I(VBUS)",
"kind": "electrical",
"unit": "mA",
"min": null,
"typ": 1.5,
"max": 3,
"conditions": "VBUS > V(UVLO), VBUS > VBAT, converter not switching",
"source_page": 8,
"source": "datasheet"
},
{
"name": "VBUS operating range",
"symbol": "V(VBUS_OP)",
"kind": "electrical",
"unit": "V",
"min": 3.9,
"typ": null,
"max": 14,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Sleep mode falling threshold",
"symbol": "V(SLEEP)",
"kind": "electrical",
"unit": "mV",
"min": 25,
"typ": 65,
"max": 120,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Sleep mode rising threshold",
"symbol": "V(SLEEPZ)",
"kind": "electrical",
"unit": "mV",
"min": 130,
"typ": 250,
"max": 370,
"conditions": "",
"source_page": 8,
"source": "datasheet"
},
{
"name": "Minimum DC system voltage output",
"symbol": "VSYS(MIN)",
"kind": "electrical",
"unit": "V",
"min": 3.5,
"typ": null,
"max": 3.65,
"conditions": "VBAT< VSYS(MIN), SYS_MIN = 3.5 V (REG03[3:1]=101), ISYS= 0 A",
"source_page": 8,
"source": "datasheet"
},
{
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